Visit your computer or motherboard manufacturer’s support site (e.g., Dell, HP, or Lenovo). Search for your specific model and download the latest for Windows 7.
If you see a or "Unknown device":
While the world moves on to Windows 10 and 11, Windows 7 remains a capable system for those who maintain it. By ensuring your USB controllers are properly driven, you ensure your peripherals—mice, keyboards, printers, and storage drives—function as intended, keeping your legacy machine useful for years to come. universal serial bus controller driver windows 7